<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>three.js start</title>
</head>
<body>
  <script src="./js/three.js"></script>
  <script> 
    const scene = new THREE.Scene(); // 场景
    const camera = new THREE.PerspectiveCamera( 75, window.innerWidth / window.innerHeight, 0.1, 1000 );  // 透视摄像机
    const renderer = new THREE.WebGLRenderer(); // 渲染器
    renderer.setSize( window.innerWidth, window.innerHeight ); 
    document.body.appendChild( renderer.domElement ); 
    const geometry = new THREE.BoxGeometry(); 
    const material = new THREE.MeshBasicMaterial( { color: 0x00ff00 } ); 
    const cube = new THREE.Mesh( geometry, material ); scene.add( cube ); 
    camera.position.z = 5; 
    function animate() { 
      requestAnimationFrame( animate ); 
      cube.rotation.x += 0.01; 
      cube.rotation.y += 0.01; 
      renderer.render( scene, camera ); 
    }; 
    animate(); 
  </script>
</body>
</html>